There are three kinds of common valve core: stainless steel ball valve, ceramic valve and roll shaft valve.because it is not affected by water impurities or shorten service life.we can not see the valve when we are buying faucet,but we […]
There are three kinds of common valve core: stainless steel ball valve, ceramic valve and roll shaft valve.because it is not affected by water impurities or shorten service life.we can not see the valve when we are buying faucet,but we […]